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id="toggle-menu"><a class="site-page"><i class="fas fa-bars fa-fw"></i></a></div></div></nav><div id="post-info"><h1 class="post-title">基于tio实现P2P网络</h1><div id="post-meta"><div class="meta-firstline"><span class="post-meta-date"><i class="far fa-calendar-alt fa-fw post-meta-icon"></i><span class="post-meta-label">Created</span><time class="post-meta-date-created" datetime="2021-05-14T16:02:18.000Z" title="Created 2021-05-15 00:02:18">2021-05-15</time><span class="post-meta-separator">|</span><i class="fas fa-history fa-fw post-meta-icon"></i><span class="post-meta-label">Updated</span><time class="post-meta-date-updated" datetime="2021-05-15T10:30:21.927Z" title="Updated 2021-05-15 18:30:21">2021-05-15</time></span></div><div class="meta-secondline"><span class="post-meta-separator">|</span><span class="post-meta-pv-cv" id="" data-flag-title="基于tio实现P2P网络"><i class="far fa-eye fa-fw post-meta-icon"></i><span class="post-meta-label">Post View:</span><span id="busuanzi_value_page_pv"></span></span></div></div></div></header><main class="layout" id="content-inner"><div id="post"><article class="post-content" id="article-container"><h1 id="基于tio实现P2P网络结构"><a href="#基于tio实现P2P网络结构" class="headerlink" title="基于tio实现P2P网络结构"></a>基于tio实现P2P网络结构</h1><h2 id="导入相关依赖"><a href="#导入相关依赖" class="headerlink" title="导入相关依赖"></a>导入相关依赖</h2><figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">&lt;!-- swagger API框架--&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">dependency</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">groupId</span>&gt;</span>io.springfox<span class="tag">&lt;/<span class="name">groupId</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">artifactId</span>&gt;</span>springfox-swagger2<span class="tag">&lt;/<span class="name">artifactId</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">version</span>&gt;</span>2.9.2<span class="tag">&lt;/<span class="name">version</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">dependency</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">dependency</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">groupId</span>&gt;</span>io.springfox<span class="tag">&lt;/<span class="name">groupId</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">artifactId</span>&gt;</span>springfox-swagger-ui<span class="tag">&lt;/<span class="name">artifactId</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">version</span>&gt;</span>2.9.2<span class="tag">&lt;/<span class="name">version</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">dependency</span>&gt;</span></span><br><span class="line"></span><br><span class="line"><span class="comment">&lt;!-- tio Network framework 基于JVM的网络编程框架--&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">dependency</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">groupId</span>&gt;</span>org.t-io<span class="tag">&lt;/<span class="name">groupId</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">artifactId</span>&gt;</span>tio-core<span class="tag">&lt;/<span class="name">artifactId</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">version</span>&gt;</span>3.7.0.v20201010-RELEASE<span class="tag">&lt;/<span class="name">version</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">dependency</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">dependency</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">groupId</span>&gt;</span>org.projectlombok<span class="tag">&lt;/<span class="name">groupId</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">artifactId</span>&gt;</span>lombok<span class="tag">&lt;/<span class="name">artifactId</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">version</span>&gt;</span>1.16.22<span class="tag">&lt;/<span class="name">version</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">dependency</span>&gt;</span></span><br></pre></td></tr></table></figure>

<h2 id="创建数据包结构"><a href="#创建数据包结构" class="headerlink" title="创建数据包结构"></a>创建数据包结构</h2><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> * 数据包</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"><span class="meta">@Data</span></span><br><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">MyPacket</span> <span class="keyword">extends</span> <span class="title">Packet</span> </span>&#123;</span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> Integer PACKET_HEADER_LENGTH=<span class="number">4</span>; <span class="comment">//信息包头部长度</span></span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> Integer PORT=<span class="number">8999</span>; <span class="comment">//端口</span></span><br><span class="line">    <span class="keyword">byte</span>[] body; <span class="comment">//信息包中存储的数据</span></span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<h2 id="服务器结构"><a href="#服务器结构" class="headerlink" title="服务器结构"></a>服务器结构</h2><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">MyServerAioHandler</span> <span class="keyword">implements</span> <span class="title">ServerAioHandler</span></span>&#123;</span><br><span class="line">    <span class="comment">//日志记录</span></span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> Logger logger=LoggerFactory.getLogger(MyServerAioHandler.class);</span><br><span class="line"></span><br><span class="line">    <span class="meta">@SneakyThrows</span></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> Packet <span class="title">decode</span><span class="params">(ByteBuffer byteBuffer, <span class="keyword">int</span> limit, <span class="keyword">int</span> position, <span class="keyword">int</span> readableLength, ChannelContext channelContext)</span> <span class="keyword">throws</span> TioDecodeException </span>&#123;</span><br><span class="line">        logger.debug(<span class="string">&quot;inside decode...&quot;</span>);</span><br><span class="line"></span><br><span class="line">        <span class="keyword">if</span>(MyPacket.PACKET_HEADER_LENGTH&gt;readableLength)&#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="keyword">null</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        <span class="keyword">int</span> bodyLength=byteBuffer.getInt();</span><br><span class="line">        <span class="keyword">if</span>(bodyLength&lt;<span class="number">0</span>)&#123;</span><br><span class="line">            <span class="keyword">throw</span> <span class="keyword">new</span> TioDecodeException(<span class="string">&quot;body length [ &quot;</span>+bodyLength+<span class="string">&quot; ] is invalid remote: &quot;</span>+channelContext.getServerNode());</span><br><span class="line">        &#125;</span><br><span class="line">        <span class="keyword">int</span> len=bodyLength+ MyPacket.PACKET_HEADER_LENGTH;</span><br><span class="line">        <span class="keyword">if</span>(len&gt;readableLength)&#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="keyword">null</span>;</span><br><span class="line">        &#125;<span class="keyword">else</span> &#123;</span><br><span class="line">            <span class="keyword">byte</span>[] bytes=<span class="keyword">new</span> <span class="keyword">byte</span>[len];</span><br><span class="line">            <span class="keyword">int</span> i=<span class="number">0</span>;</span><br><span class="line">            <span class="keyword">while</span> (<span class="keyword">true</span>)&#123;</span><br><span class="line">                <span class="keyword">if</span>(byteBuffer.remaining()==<span class="number">0</span>)&#123;</span><br><span class="line">                    <span class="keyword">break</span>;</span><br><span class="line">                &#125;</span><br><span class="line">                <span class="keyword">byte</span> b =byteBuffer.get();</span><br><span class="line">                bytes[i++]=b;</span><br><span class="line">            &#125;</span><br><span class="line">            MyPacket myPacket =<span class="keyword">new</span> MyPacket();</span><br><span class="line">            myPacket.setBody(bytes);</span><br><span class="line">            String data=<span class="keyword">new</span> String(bytes,<span class="string">&quot;utf-8&quot;</span>);</span><br><span class="line">            <span class="keyword">return</span> myPacket;</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> ByteBuffer <span class="title">encode</span><span class="params">(Packet packet, TioConfig tioConfig, ChannelContext channelContext)</span> </span>&#123;</span><br><span class="line">        logger.debug(<span class="string">&quot;inside encode...&quot;</span>);</span><br><span class="line">        MyPacket myPacket = (MyPacket) packet;</span><br><span class="line">        <span class="keyword">byte</span>[] body= myPacket.getBody();</span><br><span class="line">        <span class="keyword">int</span> bodyLength=<span class="number">0</span>;</span><br><span class="line">        <span class="keyword">if</span>(body!=<span class="keyword">null</span>)&#123;</span><br><span class="line">            bodyLength=body.length;</span><br><span class="line">        &#125;</span><br><span class="line">        ByteBuffer byteBuffer=ByteBuffer.allocate(bodyLength+ MyPacket.PACKET_HEADER_LENGTH);</span><br><span class="line">        byteBuffer.order(tioConfig.getByteOrder());</span><br><span class="line">        byteBuffer.putInt(bodyLength);</span><br><span class="line">        <span class="keyword">if</span>(body!=<span class="keyword">null</span>)&#123;</span><br><span class="line">            byteBuffer.put(body);</span><br><span class="line">        &#125;</span><br><span class="line"></span><br><span class="line">        String bodyStr = <span class="keyword">null</span>;</span><br><span class="line">        <span class="keyword">try</span> &#123;</span><br><span class="line">            bodyStr = <span class="keyword">new</span> String(body, <span class="string">&quot;utf-8&quot;</span>);</span><br><span class="line">        &#125; <span class="keyword">catch</span> (UnsupportedEncodingException e) &#123;</span><br><span class="line">            e.printStackTrace();</span><br><span class="line">        &#125;</span><br><span class="line">        System.out.println(<span class="string">&quot;bodyStr2:&quot;</span>+bodyStr);</span><br><span class="line"></span><br><span class="line">        <span class="keyword">return</span> byteBuffer;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">handler</span><span class="params">(Packet packet, ChannelContext channelContext)</span> <span class="keyword">throws</span> Exception </span>&#123;</span><br><span class="line">        logger.debug(<span class="string">&quot;inside handler...&quot;</span>);</span><br><span class="line">        channelContext.setServerNode(<span class="keyword">new</span> Node(<span class="string">&quot;127.0.0.1&quot;</span>, MyPacket.PORT));</span><br><span class="line">        MyPacket myPacket = (MyPacket) packet;</span><br><span class="line">        <span class="keyword">byte</span>[] body= myPacket.getBody();</span><br><span class="line">        <span class="keyword">if</span>(body!=<span class="keyword">null</span>)&#123;</span><br><span class="line">            String bodyStr=<span class="keyword">new</span> String(body,<span class="string">&quot;utf-8&quot;</span>);</span><br><span class="line">            MyPacket myPacket1 =<span class="keyword">new</span> MyPacket();</span><br><span class="line">            myPacket1.setBody((<span class="string">&quot; receive from [ &quot;</span>+channelContext.getClientNode()+<span class="string">&quot; ]: &quot;</span>+bodyStr).getBytes(StandardCharsets.UTF_8));</span><br><span class="line">            Tio.send(channelContext, myPacket1);</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">MyServerAioListener</span> <span class="keyword">implements</span> <span class="title">ServerAioListener</span> </span>&#123;</span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">boolean</span> <span class="title">onHeartbeatTimeout</span><span class="params">(ChannelContext channelContext, Long aLong, <span class="keyword">int</span> i)</span> </span>&#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="keyword">false</span>;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">onAfterConnected</span><span class="params">(ChannelContext channelContext, <span class="keyword">boolean</span> b, <span class="keyword">boolean</span> b1)</span> <span class="keyword">throws</span> Exception </span>&#123;</span><br><span class="line"></span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">onAfterDecoded</span><span class="params">(ChannelContext channelContext, Packet packet, <span class="keyword">int</span> i)</span> <span class="keyword">throws</span> Exception </span>&#123;</span><br><span class="line"></span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">onAfterReceivedBytes</span><span class="params">(ChannelContext channelContext, <span class="keyword">int</span> i)</span> <span class="keyword">throws</span> Exception </span>&#123;</span><br><span class="line"></span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">onAfterSent</span><span class="params">(ChannelContext channelContext, Packet packet, <span class="keyword">boolean</span> b)</span> <span class="keyword">throws</span> Exception </span>&#123;</span><br><span class="line"></span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">onAfterHandled</span><span class="params">(ChannelContext channelContext, Packet packet, <span class="keyword">long</span> l)</span> <span class="keyword">throws</span> Exception </span>&#123;</span><br><span class="line"></span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">onBeforeClose</span><span class="params">(ChannelContext channelContext, Throwable throwable, String s, <span class="keyword">boolean</span> b)</span> <span class="keyword">throws</span> Exception </span>&#123;</span><br><span class="line"></span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<h3 id="服务端"><a href="#服务端" class="headerlink" title="服务端"></a>服务端</h3><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">@Component</span></span><br><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">MyTioServer</span> </span>&#123;</span><br><span class="line">    <span class="function"><span class="keyword">public</span> String <span class="title">startupTio</span><span class="params">()</span></span>&#123;</span><br><span class="line">        <span class="keyword">try</span> &#123;</span><br><span class="line">            ServerTioConfig serverTioConfig=<span class="keyword">new</span> ServerTioConfig(<span class="string">&quot;tio-server&quot;</span>,<span class="keyword">new</span> MyServerAioHandler(),<span class="keyword">new</span> MyServerAioListener());</span><br><span class="line">            TioServer server=<span class="keyword">new</span> TioServer(serverTioConfig);</span><br><span class="line">            TioServer tioServer=<span class="keyword">new</span> TioServer(serverTioConfig);</span><br><span class="line">            server.start(<span class="string">&quot;127.0.0.1&quot;</span>,<span class="number">8999</span>);</span><br><span class="line">        &#125; <span class="keyword">catch</span> (IOException e) &#123;</span><br><span class="line">            System.out.println(<span class="string">&quot;出现异常：&quot;</span>+e.getMessage());</span><br><span class="line">            <span class="keyword">return</span> <span class="string">&quot;error!&quot;</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        <span class="keyword">return</span> <span class="string">&quot;Startup Server OK!&quot;</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<h2 id="客户端结构"><a href="#客户端结构" class="headerlink" title="客户端结构"></a>客户端结构</h2><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">MyClientAioHandler</span> <span class="keyword">implements</span> <span class="title">ClientAioHandler</span> </span>&#123;</span><br><span class="line"></span><br><span class="line">    Logger logger= LoggerFactory.getLogger(MyClientAioHandler.class);</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> Packet <span class="title">heartbeatPacket</span><span class="params">(ChannelContext channelContext)</span> </span>&#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="keyword">null</span>;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> Packet <span class="title">decode</span><span class="params">(ByteBuffer byteBuffer, <span class="keyword">int</span> limit, <span class="keyword">int</span> position, <span class="keyword">int</span> readableLength, ChannelContext channelContext)</span> <span class="keyword">throws</span> TioDecodeException </span>&#123;</span><br><span class="line">        <span class="keyword">if</span>(MyPacket.PACKET_HEADER_LENGTH&gt;readableLength)&#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="keyword">null</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        <span class="keyword">int</span> bodyLength=byteBuffer.getInt();</span><br><span class="line">        <span class="keyword">if</span>(bodyLength&lt;<span class="number">0</span>)&#123;</span><br><span class="line">            <span class="keyword">throw</span> <span class="keyword">new</span> TioDecodeException(<span class="string">&quot;body length [ &quot;</span>+bodyLength+<span class="string">&quot; ] is invalid remote: &quot;</span>+channelContext.getServerNode());</span><br><span class="line">        &#125;</span><br><span class="line"></span><br><span class="line">        <span class="keyword">int</span> usefulLength=bodyLength+ MyPacket.PACKET_HEADER_LENGTH;</span><br><span class="line">        <span class="keyword">if</span>(usefulLength&gt;readableLength)&#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="keyword">null</span>;</span><br><span class="line">        &#125;<span class="keyword">else</span> &#123;</span><br><span class="line">            MyPacket packet=<span class="keyword">new</span> MyPacket();</span><br><span class="line">            <span class="keyword">byte</span>[] body=<span class="keyword">new</span> <span class="keyword">byte</span>[bodyLength];</span><br><span class="line">            byteBuffer.get(body);</span><br><span class="line">            packet.setBody(body);</span><br><span class="line">            <span class="keyword">return</span> packet;</span><br><span class="line">        &#125;</span><br><span class="line"></span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> ByteBuffer <span class="title">encode</span><span class="params">(Packet packet, TioConfig tioConfig, ChannelContext channelContext)</span> </span>&#123;</span><br><span class="line">        MyPacket clientPacket= (MyPacket) packet;</span><br><span class="line">        <span class="keyword">byte</span>[] body=clientPacket.getBody();</span><br><span class="line">        <span class="keyword">int</span> bodyLength=<span class="number">0</span>;</span><br><span class="line">        <span class="keyword">if</span>(body!=<span class="keyword">null</span>)&#123;</span><br><span class="line">            bodyLength=body.length;</span><br><span class="line">        &#125;</span><br><span class="line">        <span class="keyword">int</span> len= MyPacket.PACKET_HEADER_LENGTH+bodyLength;</span><br><span class="line">        ByteBuffer byteBuffer=ByteBuffer.allocate(len);</span><br><span class="line">        byteBuffer.order(tioConfig.getByteOrder());</span><br><span class="line">        byteBuffer.putInt(bodyLength);</span><br><span class="line">        <span class="keyword">if</span>(body!=<span class="keyword">null</span>)&#123;</span><br><span class="line">            byteBuffer.put(body);</span><br><span class="line">        &#125;</span><br><span class="line">        <span class="keyword">return</span> byteBuffer;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">handler</span><span class="params">(Packet packet, ChannelContext channelContext)</span> <span class="keyword">throws</span> Exception </span>&#123;</span><br><span class="line">        MyPacket clientPacket= (MyPacket) packet;</span><br><span class="line">        <span class="keyword">byte</span>[] body=clientPacket.getBody();</span><br><span class="line">        <span class="keyword">if</span>(body!=<span class="keyword">null</span>)&#123;</span><br><span class="line">            String bodyStr=<span class="keyword">new</span> String(body,<span class="string">&quot;utf-8&quot;</span>);</span><br><span class="line">            logger.debug(<span class="string">&quot;客户端收到信息：&quot;</span>+bodyStr);</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">MyClientAioListener</span> <span class="keyword">implements</span> <span class="title">ClientAioListener</span> </span>&#123;</span><br><span class="line"></span><br><span class="line">    Logger logger= LoggerFactory.getLogger(MyClientAioListener.class);</span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">static</span> Integer count=<span class="number">0</span>;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">onAfterConnected</span><span class="params">(ChannelContext channelContext, <span class="keyword">boolean</span> b, <span class="keyword">boolean</span> b1)</span> <span class="keyword">throws</span> Exception </span>&#123;</span><br><span class="line">        logger.info(<span class="string">&quot;onAfterConnected...&quot;</span>);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">onAfterDecoded</span><span class="params">(ChannelContext channelContext, Packet packet, <span class="keyword">int</span> i)</span> <span class="keyword">throws</span> Exception </span>&#123;</span><br><span class="line">        logger.info(<span class="string">&quot;onAfterDecoded...&quot;</span>);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">onAfterReceivedBytes</span><span class="params">(ChannelContext channelContext, <span class="keyword">int</span> i)</span> <span class="keyword">throws</span> Exception </span>&#123;</span><br><span class="line">        logger.info(<span class="string">&quot;onAfterReceivedBytes---------------------------&quot;</span>+i);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">onAfterSent</span><span class="params">(ChannelContext channelContext, Packet packet, <span class="keyword">boolean</span> b)</span> <span class="keyword">throws</span> Exception </span>&#123;</span><br><span class="line">        logger.info(<span class="string">&quot;onAfterSent...&quot;</span>);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">onAfterHandled</span><span class="params">(ChannelContext channelContext, Packet packet, <span class="keyword">long</span> l)</span> <span class="keyword">throws</span> Exception </span>&#123;</span><br><span class="line">        System.out.println(<span class="string">&quot;onAfterHandled...&quot;</span>);</span><br><span class="line">        MyPacket clientPacket= (MyPacket) packet;</span><br><span class="line">        String resData=<span class="keyword">new</span> String(clientPacket.getBody(),<span class="string">&quot;utf-8&quot;</span>);</span><br><span class="line">        logger.info(<span class="string">&quot;[ &quot;</span>+channelContext.getServerNode()+<span class="string">&quot; ] : &quot;</span>+resData);</span><br><span class="line">        count++;</span><br><span class="line">        ((MyPacket)packet).setBody((<span class="string">&quot;[ &quot;</span>+channelContext.getServerNode()+<span class="string">&quot; ]: &quot;</span>+count).getBytes(StandardCharsets.UTF_8));</span><br><span class="line">        Thread.sleep(<span class="number">5000</span>);</span><br><span class="line">        Tio.send(channelContext,packet);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">onBeforeClose</span><span class="params">(ChannelContext channelContext, Throwable throwable, String s, <span class="keyword">boolean</span> b)</span> <span class="keyword">throws</span> Exception </span>&#123;</span><br><span class="line">        logger.error(throwable.getMessage());</span><br><span class="line">        logger.info(s);</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<h3 id="客户端"><a href="#客户端" class="headerlink" title="客户端"></a>客户端</h3><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">@Component</span></span><br><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">MyTioClient</span> </span>&#123;</span><br><span class="line">    <span class="function"><span class="keyword">public</span> String <span class="title">startupTio</span><span class="params">()</span></span>&#123;</span><br><span class="line">        <span class="keyword">try</span> &#123;</span><br><span class="line">            ClientTioConfig clientTioConfig=<span class="keyword">new</span> ClientTioConfig(<span class="keyword">new</span> MyClientAioHandler(),<span class="keyword">new</span> MyClientAioListener());</span><br><span class="line">            TioClient tioClient=<span class="keyword">new</span> TioClient(clientTioConfig);</span><br><span class="line">            System.out.println(<span class="string">&quot;tio连接开始...&quot;</span>);</span><br><span class="line">            MyPacket clientPacket=<span class="keyword">new</span> MyPacket();</span><br><span class="line">            clientPacket.setBody(<span class="string">&quot;hello,tio-ywrby&quot;</span>.getBytes(StandardCharsets.UTF_8));</span><br><span class="line">            ClientChannelContext clientChannelContext=tioClient.connect(<span class="keyword">new</span> Node(<span class="string">&quot;127.0.0.1&quot;</span>,<span class="number">8999</span>));</span><br><span class="line">            <span class="comment">//clientPacket.setBody(&quot;hello,tio-ywrby&quot;.getBytes(StandardCharsets.UTF_8));</span></span><br><span class="line">            <span class="comment">//System.out.println(&quot;tio连接关闭...&quot;);</span></span><br><span class="line">            Tio.send(clientChannelContext,clientPacket);</span><br><span class="line">        &#125; <span class="keyword">catch</span> (Exception e) &#123;</span><br><span class="line">            System.out.println(<span class="string">&quot;出现异常：&quot;</span>+e.getMessage());</span><br><span class="line">            <span class="keyword">return</span> <span class="string">&quot;error!&quot;</span>;</span><br><span class="line">        &#125;</span><br><span class="line"></span><br><span class="line"></span><br><span class="line">        <span class="keyword">return</span> <span class="string">&quot;Startup Client OK!&quot;</span>;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">send</span><span class="params">()</span></span>&#123;</span><br><span class="line"></span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<h2 id="控制层"><a href="#控制层" class="headerlink" title="控制层"></a>控制层</h2><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">@RestController</span></span><br><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">MyTioController</span> </span>&#123;</span><br><span class="line">    <span class="meta">@Autowired</span></span><br><span class="line">    <span class="keyword">private</span> MyTioServer tioServer;</span><br><span class="line">    <span class="meta">@Autowired</span></span><br><span class="line">    <span class="keyword">private</span> MyTioClient tioClient;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@GetMapping(&quot;/server&quot;)</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> String <span class="title">server</span><span class="params">()</span></span>&#123;</span><br><span class="line">        <span class="keyword">return</span> tioServer.startupTio();</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@GetMapping(&quot;/client&quot;)</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> String <span class="title">client</span><span class="params">()</span></span>&#123;</span><br><span class="line">        <span class="keyword">return</span> tioClient.startupTio();</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure></article><div class="post-copyright"><div class="post-copyright__author"><span class="post-copyright-meta">Author: </span><span class="post-copyright-info"><a href="mailto:undefined">Ywrby</a></span></div><div class="post-copyright__type"><span class="post-copyright-meta">Link: </span><span class="post-copyright-info"><a href="http://ywrby.cn/2021/05/15/%E5%9F%BA%E4%BA%8Etio%E5%AE%9E%E7%8E%B0P2P%E7%BD%91%E7%BB%9C/">http://ywrby.cn/2021/05/15/%E5%9F%BA%E4%BA%8Etio%E5%AE%9E%E7%8E%B0P2P%E7%BD%91%E7%BB%9C/</a></span></div><div class="post-copyright__notice"><span class="post-copyright-meta">Copyright Notice: </span><span class="post-copyright-info">All articles in this blog are licensed under <a target="_blank" rel="noopener" href="https://creativecommons.org/licenses/by-nc-sa/4.0/">CC BY-NC-SA 4.0</a> unless stating additionally.</span></div></div><div class="tag_share"><div class="post-meta__tag-list"><a class="post-meta__tags" href="/tags/%E5%8C%BA%E5%9D%97%E9%93%BE/">区块链</a><a class="post-meta__tags" href="/tags/tio/">tio</a><a class="post-meta__tags" href="/tags/P2P/">P2P</a></div><div class="post_share"><div class="social-share" data-image="/img/illust_3518827_20191113_165540.jpg" data-sites="facebook,twitter,wechat,weibo,qq"></div><link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/social-share.js/dist/css/share.min.css" media="print" onload="this.media='all'"><script src="https://cdn.jsdelivr.net/npm/social-share.js/dist/js/social-share.min.js" defer></script></div></div><nav class="pagination-post" id="pagination"><div class="prev-post pull-left"><a href="/2021/05/15/1-%E5%8C%BA%E5%9D%97%E9%93%BE%E5%9F%BA%E7%A1%80%E6%A6%82%E8%BF%B0/"><img class="prev-cover" src="/img/73604608_p0.jpg" 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class="toc-link" href="#%E5%AF%BC%E5%85%A5%E7%9B%B8%E5%85%B3%E4%BE%9D%E8%B5%96"><span class="toc-number">1.1.</span> <span class="toc-text">导入相关依赖</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#%E5%88%9B%E5%BB%BA%E6%95%B0%E6%8D%AE%E5%8C%85%E7%BB%93%E6%9E%84"><span class="toc-number">1.2.</span> <span class="toc-text">创建数据包结构</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%BB%93%E6%9E%84"><span class="toc-number">1.3.</span> <span class="toc-text">服务器结构</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#%E6%9C%8D%E5%8A%A1%E7%AB%AF"><span class="toc-number">1.3.1.</span> <span class="toc-text">服务端</span></a></li></ol></li><li class="toc-item toc-level-2"><a class="toc-link" href="#%E5%AE%A2%E6%88%B7%E7%AB%AF%E7%BB%93%E6%9E%84"><span class="toc-number">1.4.</span> <span class="toc-text">客户端结构</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a 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